: My sis in law was diagnosed with Emphysema 11/99 and now my husband is having problems (waiting on test results), I was speaking with her daughter and she said that when they were small they played in a park that had lots, lots of pigeons. And one of her mothers doctors diagnosed her with something about the birds (pigeons) causing trouble in her lungs... Anyone have any information, or know where I could locate online info would be greatly appreciated. Blessings! ~T